2011 Management and Control Project of Construction Sites in Tainan City which followed the past years’ rountin on inspecting the construction sites and promoted latest relvent regulations. Until Mid-Term of this project, from Jul. 01, 2011 to Dec 31, 2011, this project completed objectives in the arranged schedule. During this period, total of 4,169 new contruction sites declared Air Pollution Fee which amounted to 51,187,484 NT dollars. Fuhtermore, there are 6,446 construction sites still under contruction, which could produce up to 6,046.27 tons TSP emission acrroding to our estimative calculation. In order to increase employers’ awareness on eviromental protection, this project proceeded with 7,344 patrols, 4,632 sites were under this project’s observation list, and control rate was 71.85% . Through this project’s management, the average reducing rate was 60.85 % that casuesed actual TSP emission to 3,687.02 tons, and law coincidence rate was 73.64%. In addition, we promoted adopting street wash and sweep to construction site’s employers. 32 employers agreed to involve with this movement. Moreover, sampling tests 15 times of diesel engine oil on construction sites, 30 spots with measuring TSP, published 6 news, held 1 staff training meeting ,and 2 explanatory conference.